Mia, maybe you already know this. One can use FireFox (and probably other browsers' tools) to explore the elements of any webpage in Moodle. Then, in Firefox, one can experiment with changes. I gave a presentation at MoodleMoot 2016 about some of the things I do with MORE. I forget if I have already shared this with you. Here is a link to my webpage for this presentation.
Courses and course formats
Section spacing
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